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Gamma-decanolactone attenuates acute and chronic seizures in mice: a possible role of adenosine A1 receptors. Behav Pharmacol 2021; 31:544-552. [PMID: 32701527 DOI: 10.1097/fbp.0000000000000554] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
This study aimed to investigate the possible gamma-decanolactone mechanisms of action in the GABAergic and adenosine systems using the aminophylline-induced acute crisis model and the pentylenetetrazole-induced kindling model. In the acute model, male mice received administration of bicuculline (GABAA receptor antagonist), 8-cyclopentyl-1,3-dipropylxanthine (A1 receptor antagonist) or ZM241385 (A2A receptor antagonist), 15 min before the treatment with gamma-decanolactone (300 mg/kg). After a single dose of aminophylline was administered, the animals were observed for 60 min. In the chronic model of seizure, 30 min after the treatment with gamma-decanolactone, mice received pentylenetetrazole once every third day. On the last day of kindling, the animals received the same GABA and adenosine antagonists used in the acute model, 15 min before gamma-decanolactone administration. The protein expression of GABAA α1 receptor and adenosine A1 receptor was detected using western blotting technique in hippocampal samples. The results showed that gamma-decanolactone increased the latency to first seizure and decreased seizure occurrence in the acute and chronic models. The adenosine A2A receptor antagonist and GABAA receptor antagonist were not able to change gamma-decanolactone behavioral seizure induced by aminophylline or pentylenetetrazole. The administration of adenosine A1 receptor antagonist reversed the protective effect of gamma-decanolactone in both models. In addition, gamma-decanolactone promoted an increase in the expression GABAA α1 receptor, in the hippocampus. The results suggest that the neuroprotective effect of gamma-decanolactone observed during the investigation could have a straight connection to its action on A1 adenosine receptors.
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Enrique AV, Di Ianni ME, Goicoechea S, Lazarowski A, Valle-Dorado MG, Costa JJL, Rocha L, Girardi E, Talevi A. New anticonvulsant candidates prevent P-glycoprotein (P-gp) overexpression in a pharmacoresistant seizure model in mice. Epilepsy Behav 2021; 121:106451. [PMID: 31420290 DOI: 10.1016/j.yebeh.2019.106451] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 07/17/2019] [Accepted: 07/19/2019] [Indexed: 01/04/2023]
Abstract
Despite the approval of a considerable number of last generation antiepileptic drugs (AEDs) (only in the last decade, six drugs have gained Food and Drug Administration approval), the global figures of seizure control have seemingly not improved, and available AED can still be regarded as symptomatic treatments. Fresh thinking in AEDs drug discovery, including the development of drugs with novel mechanisms of action, is required to achieve truly innovative antiepileptic medications. The transporter hypothesis proposes that inadequate penetration of AEDs across the blood-brain barrier, caused by increased expression of efflux transporters such as P-glycoprotein (P-gp), contributes to drug-resistant epilepsy. Neuroinflammation due to high levels of glutamate has been identified as one of the causes of P-gp upregulation, and several studies in animal models of epilepsy suggest that antiinflammatory drugs might prevent P-gp overexpression and, thus, avoid the development of refractory epilepsy. We have applied ligand-based in silico screening to select compounds that exert dual anticonvulsant and antiinflammatory effects. Five of the hits were tested in animal models of seizure, with protective effects. Later, two of them (sebacic acid (SA) and gamma-decanolactone) were submitted to the recently described MP23 model of drug-resistant seizures. All in all, SA displayed the best profile, showing activity in the maximal electroshock seizure (MES) and pentylenetetrazol (PTZ) seizure models, and reversing resistance to phenytoin (PHT) and decreasing the P-gp upregulation in the MP23 model. Furthermore, pretreatment with SA in the pilocarpine status epilepticus (SE) model resulted in decreased histamine release in comparison with nontreated animals. This is the first report of the use of the MP23 model to screen for novel anticonvulsant compounds that may avoid the development of P-gp-related drug resistance.
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Affiliation(s)
- Andrea Verónica Enrique
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biologicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), 47 y115, La Plata B1900BJW, Argentina
| | - Mauricio Emiliano Di Ianni
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biologicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), 47 y115, La Plata B1900BJW, Argentina
| | - Sofía Goicoechea
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biologicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), 47 y115, La Plata B1900BJW, Argentina
| | - Alberto Lazarowski
- Instituto de Fisiopatología y Bioquímica Clínica (INFIBIOC), Facultad de Farmacia y Bioquímica (FFyB), Universidad de Buenos Aires (UBA,) Junín 956, C1113AAD CABA, Argentina
| | | | - Juan José López Costa
- Departamento de Biología Celular, Histología, Embriología y Genética, Facultad de Medicina, Universidad de Buenos Aires (UBA) / Instituto de Biología Celular y Neurociencia "Prof. E. De Robertis" (IBCN), CONICET-Universidad de Buenos Aires, Paraguay 2155, C1121ABG, Buenos Aires, Argentina
| | - Luisa Rocha
- Department of Pharmacobiology, Center for Research and Advanced Studies (CINVESTAV), Mexico City, Mexico
| | - Elena Girardi
- Departamento de Biología Celular, Histología, Embriología y Genética, Facultad de Medicina, Universidad de Buenos Aires (UBA) / Instituto de Biología Celular y Neurociencia "Prof. E. De Robertis" (IBCN), CONICET-Universidad de Buenos Aires, Paraguay 2155, C1121ABG, Buenos Aires, Argentina
| | - Alan Talevi
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biologicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), 47 y115, La Plata B1900BJW, Argentina.
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Gamma-decanolactone: Preliminary evaluation as potential antiparkinsonian drug. Eur J Pharmacol 2021; 906:174276. [PMID: 34174267 DOI: 10.1016/j.ejphar.2021.174276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 06/16/2021] [Accepted: 06/18/2021] [Indexed: 12/14/2022]
Abstract
Treatment of Parkinson's disease (PD) includes the use of monoamine oxidase-B (MAO-B) inhibitor drugs. In this work we have evaluated the possible gamma-decanolactone (GD) effect in vitro to inhibit the A and B isoforms of human monoamine oxidase (hMAO) enzyme and their citotoxicity in human hepatoma cell line (HepG2). Also, binding studies to A1, A2A A2B and A3 adenosine receptors were performed. A docking study of gamma-decanolactone has been carried out with the molecular targets of MAO-A and MAO-B isoforms. The physicochemical properties and ability to cross physiological barriers, as the blood brain barrier (BBB), was elucidated by computational studies. The in vivo assays, the rota-rod test, body temperature assessment and open field test were performed in reserpinized mice (1.5 mg/kg, i.p.; 18:00 before) to evaluate the effect of gamma-decanolactone (300 mg/kg), alone or associated with Levodopa plus Benserazide (LD + BZ, 100:25 mg/kg, i.p.). Gamma-decanolactone inhibited preferentially the MAO-B in a reversible manner, with an inhibitory concentration of 50% (IC50) 55.95 ± 9.06 μM. It was shown to be a safe drug since only at the highest concentration decreased the viability of HepG2 cells. It also does not bind to adenosine receptors investigated in this study. The molecular docking study show that the gamma-decanolactone ligand adopts a relatively compact conformation in the active site of hMAO-B, while we note an extended conformation of gamma-decanolactone ligand in the hMAO-A isoform. The physicochemical properties obtained, and the theoretical models utilized for the evaluation of ability to cross the BBB, predict a good gamma-decanolactone bioavailability and access to the central nervous system (CNS). In the in vivo studies, gamma-decanolactone partially reversed the ataxia of the reserpinized mice at 01:00 h and 01:30 h post-administration. Concomitant treatment of gamma-decanolactone with LD + BZ, at 01:30 h showed a potentiation of the reversibility of ataxia and facilitated the reversal of hypothermia caused by reserpine for all measured times (P <0.01 vs vehicle), except at 24:00 h, but not reversed the hypokinesia in the open field test. In summary, the results herein obtained and in conjunction with previous studies, suggest that gamma-decanolactone could be a drug with potential utility as antiparkinsonian drug.
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Development of larvicide nanoemulsion from the essential oil of Aeollanthus suaveolens Mart. ex Spreng against Aedes aegypti, and its toxicity in non-target organism. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103148] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Dos Santos FM, Pflüger PF, Lazzarotto L, Uczay M, de Aguida WR, da Silva LS, Boaretto FBM, de Sousa JT, Picada JN, da Silva Torres IL, Pereira P. Gamma-Decanolactone Alters the Expression of GluN2B, A 1 Receptors, and COX-2 and Reduces DNA Damage in the PTZ-Induced Seizure Model After Subchronic Treatment in Mice. Neurochem Res 2021; 46:2066-2078. [PMID: 34019198 DOI: 10.1007/s11064-021-03345-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 04/05/2021] [Accepted: 05/12/2021] [Indexed: 11/26/2022]
Abstract
Gamma-decanolactone (GD) has been shown to reduce epileptic behavior in different models, inflammatory decreasing, oxidative stress, and genotoxic parameters. This study assessed the GD effect on the pentylenetetrazole (PTZ) model after acute and subchronic treatment. We evaluated the expression of the inflammatory marker cyclooxygenase-2 (COX-2), GluN2B, a subunit of the NMDA glutamate receptor, adenosine A1 receptor, and GD genotoxicity and mutagenicity. Male and female mice were treated with GD (300 mg/kg) for 12 days. On the tenth day, they were tested in the Hot Plate test. On the thirteenth day, all animals received PTZ (90 mg/kg), and epileptic behavior PTZ-induced was observed for 30 min. Pregabalin (PGB) (30 mg/kg) was used as a positive control. Samples of the hippocampus and blood were collected for Western Blotting analyses and Comet Assay and bone marrow to the Micronucleus test. Only the acute treatment of GD reduced the seizure occurrence and increased the latency to the first stage 3 seizures. Males treated with GD for 12 days demonstrated a significant increase in the expression of the GluN2B receptor and a decrease in the COX-2 expression. Acute and subchronic treatment with GD and PGB reduced the DNA damage produced by PTZ in males and females. There is no increase in the micronucleus frequency in bone marrow after subchronic treatment. This study suggests that GD, after 12 days, could not reduce PTZ-induced seizures, but it has been shown to protect against DNA damage, reduce COX-2 and increase GluN2B expression.
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Affiliation(s)
- Fernanda Marcelia Dos Santos
- Laboratory of Neuropharmacology and Preclinical Toxicology, Health Basic Sciences Institute, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Pricila Fernandes Pflüger
- Laboratory of Neuropharmacology and Preclinical Toxicology, Health Basic Sciences Institute, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Leticia Lazzarotto
- Laboratory of Neuropharmacology and Preclinical Toxicology, Health Basic Sciences Institute, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Mariana Uczay
- Laboratory of Neuropharmacology and Preclinical Toxicology, Health Basic Sciences Institute, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Wesley Roberto de Aguida
- Laboratory of Neuropharmacology and Preclinical Toxicology, Health Basic Sciences Institute, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Lisiane Santos da Silva
- Laboratory of Pain Pharmacology and Neuromodulation: Pre-Clinical Research. Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | | | | | | | - Iraci Lucena da Silva Torres
- Laboratory of Pain Pharmacology and Neuromodulation: Pre-Clinical Research. Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Patrícia Pereira
- Laboratory of Neuropharmacology and Preclinical Toxicology, Health Basic Sciences Institute, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
- Laboratory of Neuropharmacology and Preclinical Toxicology, Department of Pharmacology, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Sarmento Leite 500/305, Porto Alegre, RS, CEP 90050-170, Brazil.
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de Oliveira Ferraz T, Ferreira DQ, Mourão RHV, Formiga FR, Carvalho JCT, Fernandes CP. Nano-emulsification of Aeollanthus suaveolens Mart. Ex Spreng essential oil modifies its neuroeffects? Drug Deliv Transl Res 2020; 10:1764-1770. [PMID: 32876880 DOI: 10.1007/s13346-020-00846-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2020] [Indexed: 11/30/2022]
Abstract
Oil in water nano-emulsions are drug delivery systems constituted by liquid lipophilic nano-droplets dispersed through the external aqueous phase, often reaching the kinetic stability with surfactant as stabilizers. Essential oils can be the oily phase or the source of bioactive compounds. In this study, the essential oil of Aeollanthus suaveolens-a plant used in folk medicine due to its psychopharmacological effects-was used for preparation of fine nano-emulsions by a low-energy titrating method. Monodisperse small nano-droplets (ca. 70 nm; PdI 0.200) were assembled by using blends of non-ionic surfactants, indicating modulation on surfactant system lead to altering the physical property. In a separate set of experiments, we investigated the role of this modulation on biological properties of the optimal nano-emulsion. The zebrafish embryos were more susceptible to the nano-emulsion than the bulk essential oil, showing the improved bioactivity due to nano-sizing. Therefore, adult zebrafish was treated, and paralysis was observed in the groups treated with the nano-emulsion, being this finding in accordance with hypnosis. At the same essential oil dose, another behavior was observed, suggesting that expected dose-dependent effects associated to sedative-hypnotics can be achieved by nano-sizing of psychoactive essential oils. This paper contributes to the state-of-art drug delivery systems by opening perspectives for novel sedative-hypnotics nano-emulsified essentials oils that can reach hypnotic effects at considerably lower dose, when compared with bulk materials, being useful for further completed dose-response studies.Graphical abstract.
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Affiliation(s)
- Thamara de Oliveira Ferraz
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Amapá, Macapá, Brazil.,Laboratory of Phytopharmaceutical Nanobiotechnology, Federal University of Amapá, Macapá, Brazil
| | - Diego Quaresma Ferreira
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Amapá, Macapá, Brazil
| | | | - Fabio Rocha Formiga
- Aggeu Magalhães Institute, Oswaldo Cruz Foundation (FIOCRUZ), Recife, PE, Brazil.,Post-graduate Program in Applied Cellular and Molecular Biology, Institute of Biological Sciences, University of Pernambuco (UPE), Recife/PE, Brazil
| | - José Carlos Tavares Carvalho
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Amapá, Macapá, Brazil.,Laboratory of Drug Research, Federal University of Amapá, Macapá, Brazil
| | - Caio Pinho Fernandes
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Amapá, Macapá, Brazil. .,Laboratory of Phytopharmaceutical Nanobiotechnology, Federal University of Amapá, Macapá, Brazil.
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Felipe CFB, Albuquerque AMS, de Pontes JLX, de Melo JÍV, Rodrigues TCML, de Sousa AMP, Monteiro ÁB, Ribeiro AEDS, Lopes JP, de Menezes IRA, de Almeida RN. Comparative study of alpha- and beta-pinene effect on PTZ-induced convulsions in mice. Fundam Clin Pharmacol 2018; 33:181-190. [DOI: 10.1111/fcp.12416] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/27/2018] [Accepted: 09/10/2018] [Indexed: 01/26/2023]
Affiliation(s)
| | | | - João Luis Xavier de Pontes
- Federal University of Paraíba, Cidade Universitária; s/n - Castelo Branco III; João Pessoa - PB 58051-085 Brazil
| | - José Ítalo Vieira de Melo
- Federal University of Paraíba, Cidade Universitária; s/n - Castelo Branco III; João Pessoa - PB 58051-085 Brazil
| | | | - Ada Mirtes Pereira de Sousa
- Federal University of Paraíba, Cidade Universitária; s/n - Castelo Branco III; João Pessoa - PB 58051-085 Brazil
| | - Álefe Brito Monteiro
- Federal University of Paraíba, Cidade Universitária; s/n - Castelo Branco III; João Pessoa - PB 58051-085 Brazil
| | - Ana Elisa da Silva Ribeiro
- Faculty of Medicine Estácio of Juazeiro do Norte; Avenida Tenente Raimundo Rocha; 555 - Cidade Universitária Juazeiro do Norte - CE 63040-360 Brazil
| | - Janice Pereira Lopes
- Faculty of Medicine Estácio of Juazeiro do Norte; Avenida Tenente Raimundo Rocha; 555 - Cidade Universitária Juazeiro do Norte - CE 63040-360 Brazil
| | | | - Reinaldo Nóbrega de Almeida
- Federal University of Paraíba, Cidade Universitária; s/n - Castelo Branco III; João Pessoa - PB 58051-085 Brazil
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Dos Santos ÉRQ, Maia CSF, Fontes Junior EA, Melo AS, Pinheiro BG, Maia JGS. Linalool-rich essential oils from the Amazon display antidepressant-type effect in rodents. JOURNAL OF ETHNOPHARMACOLOGY 2018; 212:43-49. [PMID: 29037915 DOI: 10.1016/j.jep.2017.10.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 10/07/2017] [Accepted: 10/13/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The essential oils of the leaves of Aniba rosaeodora (pau-rosa), Aniba parviflora (macacaporanga) and Aeollanthus suaveolens (catinga-de-mulata), rich in linalool, are used in the traditional medicine of the Brazilian Amazon for its effects on the central nervous system, such as sedative, anticonvulsant and antidepressant, among other therapeutic properties. AIM OF THE STUDY To analyze the chemical composition of these oils and to evaluate their neurobehavioral effects in rodents, based on different and established behavioral tests. MATERIAL AND METHODS The oils were distilled and analyzed by GC and GC-MS. Male Wistar rats received intraperitoneal doses of the oils of pau-rosa (3.5 and 35mg/kg), macacaporanga (8.5 and 85mg/kg) and catinga-de-mulata (7.5 and 75mg/kg), in addition to a linalool standard (30mg/kg). The neurobehavioral effects were evaluated using the tests: Open Field (spontaneous locomotion activity), Elevated Plus Maze (anxiolytic- type activity), Splash and Forced Swimming (antidepressive-type activity) and the Inhibitory Avoidance (memory retention). RESULTS The three oils (highest dose) and standard linalool presented significant antidepressant activity in rodents. Linalool was identified as the major constituent of the oils (pau-rosa, 88.6%, macacaporanga, 45%, catinga-de-mulata, 49.3%). The standard linalool used was 97.0%. CONCLUSION The pau-rosa, macacaporanga, and catinga-de-mulata oils presented antidepressant activity due to the presence of linalool, which, by the final synergistic action of other constituents found in oils, may have contributed to the increase or reduction of this behavioral effect in the treated animals. A relevant fact is that there was no compromise of spontaneous locomotion and the memory retention in the rodents.
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Affiliation(s)
- Éverton Renan Q Dos Santos
- Programa de pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pará, Brasil, 66075-900 Belém, PA, Brazil.
| | - Cristiane Socorro F Maia
- Programa de pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pará, Brasil, 66075-900 Belém, PA, Brazil; Laboratório de Farmacologia da Inflamação e do Comportamento, Instituto de Ciências da Saúde, Universidade Federal do Pará, Brasil, 66075-900 Belém, PA, Brazil.
| | - Enéas A Fontes Junior
- Programa de pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pará, Brasil, 66075-900 Belém, PA, Brazil; Laboratório de Farmacologia da Inflamação e do Comportamento, Instituto de Ciências da Saúde, Universidade Federal do Pará, Brasil, 66075-900 Belém, PA, Brazil.
| | - Ademar S Melo
- Programa de Pós-Graduação em Neurociências e Biologia Celular, Instituto de Ciências Biológicas, Universidade Federal do Pará, Brasil, 66075-900 Belém, PA, Brazil.
| | - Bruno G Pinheiro
- Programa de Pós-Graduação em Neurociências e Biologia Celular, Instituto de Ciências Biológicas, Universidade Federal do Pará, Brasil, 66075-900 Belém, PA, Brazil.
| | - José Guilherme S Maia
- Programa de pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pará, Brasil, 66075-900 Belém, PA, Brazil.
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Nóbrega de Almeida R, Agra MDF, Negromonte Souto Maior F, de Sousa DP. Essential oils and their constituents: anticonvulsant activity. Molecules 2011; 16:2726-42. [PMID: 21441872 PMCID: PMC6259740 DOI: 10.3390/molecules16032726] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2010] [Revised: 03/18/2011] [Accepted: 03/22/2011] [Indexed: 11/16/2022] Open
Abstract
A literature-based survey of plants species and their essential oils with anticonvulsant activity was carried out. As results, 30 species belonging to 13 families and 23 genera were identified for their activities in the experimental models used for anticonvulsant drug screening. Thirty chemical constituents of essential oils with anticonvulsant properties were described. Information on these 30 species is presented together with isolated bioactive compound studies.
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Affiliation(s)
- Reinaldo Nóbrega de Almeida
- Laboratório de Tecnologia Farmacêutica, Federal University of Paraíba, Caixa Postal 5009, CEP 58051-970, João Pessoa, PB, Brazil; E-Mails: ; (M.-F.A); (F.-N.S.M.)
- Author to whom correspondence should be addressed; E-Mail:
| | - Maria de Fátima Agra
- Laboratório de Tecnologia Farmacêutica, Federal University of Paraíba, Caixa Postal 5009, CEP 58051-970, João Pessoa, PB, Brazil; E-Mails: ; (M.-F.A); (F.-N.S.M.)
| | - Flávia Negromonte Souto Maior
- Laboratório de Tecnologia Farmacêutica, Federal University of Paraíba, Caixa Postal 5009, CEP 58051-970, João Pessoa, PB, Brazil; E-Mails: ; (M.-F.A); (F.-N.S.M.)
| | - Damião Pergentino de Sousa
- Department of Physiology, Federal University of Sergipe, CEP 49100-000 São Cristóvão, SE, Brazil; E-Mail:
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Radulović NS, Blagojević PD, Skropeta D, Zarubica AR, Zlatković BK, Palić RM. Misidentification of Tansy, Tanacetum Macrophyllum, as Yarrow, Achillea Grandifolia: A Health Risk or Benefit? Nat Prod Commun 2010. [DOI: 10.1177/1934578x1000500129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Tansy, Tanacetum macrophyllum (Waldst. & Kit.) Sch. Bip., is often misidentified by herb collectors as yarrow, Achillea grandifolia Friv. With the former, cases of poisoning induced by its ingestion are well documented, but the latter is widely used for ethnopharmacological purposes. The aim of this study was to estimate, based on the volatile metabolite profiles of the two species, the potential health risk connected with their misidentification. GC and GC-MS analysis of the essential oils hydrodistilled using a Clevenger-type apparatus from A. grandifolia, T. macrophyllum, and two plant samples (reputedly of A. grandifolia, but in fact mixtures of A. grandifolia and T. macrophyllum) obtained from a local market, resulted in the identification of 215 different compounds. The main constituents of A. grandifolia oil were ascaridole (15.5%), α-thujone (7.5%), camphor (15.6%), borneol (5.2%) and (Z)-jasmone (6.4%), and of T. macrophyllum oil, 1,8-cineole (8.6%), camphor (6.4%), borneol (9.1%), isobornyl acetate (9.5%), copaborneol (4.2%) and γ-eudesmol (6.2%). The compositions of the oils extracted from the samples obtained from the market were intermediate to those of A. grandifolia and T. macrophyllum. Significant differences in the corresponding volatile profiles and the literature data concerning the known activities of the pure constituents of the oils, suggested that the pharmacological action of the investigated species (or their unintentional mixtures) would be notably different. It seems, however, that misidentification of T. macrophyllum as A. grandifolia does not represent a health risk and that the absence of the toxic α-thujone from T. macrophyllum oil may in fact be regarded as a benefit.
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Affiliation(s)
- Niko S. Radulović
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Polina D. Blagojević
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Danielle Skropeta
- School of Chemistry, University of Wollongong, Wollongong, 2515, NSW, Australia
| | - Aleksandra R. Zarubica
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Bojan K. Zlatković
- Department of Biology and Ecology, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Radosav M. Palić
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
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Rijo P, Simões MF, Duarte A, Rodríguez B. Isopimarane diterpenoids from Aeollanthus rydingianus and their antimicrobial activity. PHYTOCHEMISTRY 2009; 70:1161-1165. [PMID: 19631355 DOI: 10.1016/j.phytochem.2009.06.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2009] [Revised: 06/08/2009] [Accepted: 06/11/2009] [Indexed: 05/28/2023]
Abstract
Four acyloxy-isopimarane derivatives along with two known isopimarane diterpenoids, the flavone cirsimaritin and the sterols beta-sitosterol and stigmasterol were isolated from the aerial parts of Aeollanthus rydingianus. The structures of the compounds were established on the basis of spectroscopic analysis and chemical evidence. The isolated substances were screened for antimicrobial activity against Gram-positive and Gram-negative bacteria and a yeast strain. 19-Acetoxy-7,15-isopimaradien-3beta-ol and 7,15-isopimaradien-19-ol showed minimum inhibitory concentration (MIC) values of 3.90-15.62 microg/ml for Staphylococcus aureus and of 7.81microg/ml for Enterococcus hirae.
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Affiliation(s)
- Patricia Rijo
- Faculdade de Farmácia da Universidade de Lisboa, iMed. UL, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Maria Fátima Simões
- Faculdade de Farmácia da Universidade de Lisboa, iMed. UL, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Aida Duarte
- Faculdade de Farmácia da Universidade de Lisboa, iMed. UL, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Benjamín Rodríguez
- Instituto de Química Orgánica, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain.
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de Oliveira PA, Lino FL, Cappelari SE, da Silva Brum LF, Picada JN, Pereira P. Effects of gamma-decanolactone on seizures induced by PTZ-kindling in mice. Exp Brain Res 2008; 187:161-6. [PMID: 18251015 DOI: 10.1007/s00221-008-1295-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2007] [Accepted: 01/19/2008] [Indexed: 11/25/2022]
Abstract
Gamma-decanolactone is a monoterpene compound, and its psychopharmacological evaluation in mice revealed that it has a dose-dependent effect on the central nervous system, with hypnotic, anticonvulsant, and hypothermic activity. The aim of the present study was to investigate the effect of gamma-decanolactone on pentylenetetrazole (PTZ)-kindling in mice. Phenobarbital, an antiepileptic drug, was also tested for the purpose of comparison. After the behavioral procedures had been undertaken, the animals were killed and brain tissue was sampled to evaluate DNA damage in the brain using comet assay. The data reported here suggest that the administration of phenobarbital (10 mg/kg) and gamma-decanolactone at 0.3 g/kg, but not at 0.1 g/kg, impairs both the severity and the progression of seizures in the PTZ-kindling model. DNA damage to brain tissue decreased in gamma-decanolactone-treated kindling animals (similar to phenobarbital) as compared to nontreated animals. The results suggest that gamma-decanolactone has dose-dependent anticonvulsant properties, and may also have antiepileptogenic and neuroprotective effects in the PTZ-kindling model.
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Affiliation(s)
- Paulo Alexandre de Oliveira
- Curso de Pós-Graduação em Genética e Toxicologia Aplicada, Laboratório de Farmacologia e Laboratório de Genética Toxicológica, Universidade Luterana do Brasil, Av. Farroupilha 8001, Bairro São José, Canoas, RS 92425-900, Brasil
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13
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Hossain SJ, Aoshima H, Koda H, Kiso Y. Review of Functional Studies of Beverage Components Acting on the Recombinant GABAANeuroreceptor, and Na+/Glucose Cotransporter-Response Using theXenopusOocyte Expression System and Electrophysiological Measurements. FOOD BIOTECHNOL 2007. [DOI: 10.1080/08905430701534081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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14
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Viana CCS, de Oliveira PA, Brum LFDS, Picada JN, Pereira P. Gamma-decanolactone effect on behavioral and genotoxic parameters. Life Sci 2007; 80:1014-9. [PMID: 17208256 DOI: 10.1016/j.lfs.2006.11.042] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2006] [Revised: 10/05/2006] [Accepted: 11/22/2006] [Indexed: 10/23/2022]
Abstract
Gamma-decanolactone is a monoterpene compound, which is shown to be active in some animal models. The psychopharmacological evaluation of this compound in mice has revealed that it has a dose-dependent effect on the central nervous system, including hypnotic, anticonvulsant and hypothermic activities. The aim of the present study was to evaluate the effect of gamma-decanolactone at 0.1 and 0.3 g/kg on behavior parameters related to plus-maze, open field and forced swim tests. In addition, we investigated its genotoxic activity. Gamma-decanolactone at the dose of 0.3 g/kg, but not 0.1 g/kg, decreased the number of crossings and rearings and there were no significant differences among groups regarding the latency to start locomotion in open field. A single i.p. administration of gamma-decanolactone, at the higher, but not at lower dose used, was able to increase the exploratory activity in the test session (24 h after training), as assessed by the number of rearings performed in open field, and induced DNA damage on brain tissue as measured in comet assay, suggesting an impairment of nonassociative, nonaversive learning and a genotoxic effect on CNS. Gamma-decanolactone did not change the behavior of animals in plus-maze and forced swim tests, suggesting this compound shows no anxiolytic or antidepressant activity.
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Affiliation(s)
- Carla Cristina Soares Viana
- Universidade Luterana do Brasil, Curso de Pós-Graduação em Genética e Toxicologia Aplicada, Av Farroupilha, 8001, Bairro São José, Canoas, RS, Brazil
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15
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Aguedo M, Beney L, Waché Y, Belin JM. Interaction of an odorant lactone with model phospholipid bilayers and its strong fluidizing action in yeast membrane. Int J Food Microbiol 2003; 80:211-5. [PMID: 12423922 DOI: 10.1016/s0168-1605(02)00150-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Some odorant lactones are naturally present in fruits or in fermented products; they can also be used as food additives and can be produced by microorganisms at the industrial scale by biotechnological processes. Gamma-decalactone was previously shown to have antimicrobial properties. We determined by infrared spectroscopy measurements that this compound rapidly diffused into model phospholipid bilayers (within 2 min), modifying the general physical state of a dimyristoyl-L-alpha-phosphatidylcholine (DMPC) film. In vivo, the lactone strongly increased membrane fluidity in the model yeast Yarrowia lipolytica, as evaluated by fluorescence anisotropy measurements. This effect was more important than that of benzyl alcohol, which is known as a fluidizing agent in living cells, and may explain the toxic action of gamma-decalactone in microorganisms.
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Affiliation(s)
- Mario Aguedo
- Laboratoire de Biotechnologie, ENSBANA-Université de Bourgogne, 1, Esplanade Erasme, 21000 Dijon, France.
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Abstract
The use of herbal remedies and dietary supplements is widespread throughout the world, and use may be increasing. These are taken for a wide range of perceived benefits, such as energy and memory enhancement and treatment of specific conditions. Individuals with and without epilepsy may use these substances and may not inform their treating physician unless specifically asked. Inquiry about herbal medicine and dietary supplement intake should now be part of routine clinical history taking. Anecdotal accounts suggest that some herbal substances may have anticonvulsant effect, but randomised double-blind controlled trails are lacking. Alternatively many herbals and dietary supplements may predispose to seizures in individuals without epilepsy and worsen seizure control in those with epilepsy. In this article, we review the potential anticonvulsant and proconvulsant effects of herbal remedies and dietary supplements and discuss the potential interaction between these herbal substances and conventional anticonvulsant medications.
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Affiliation(s)
- Alok Tyagi
- Department of Neurology and Clinical Neurological Sciences, Beaumont Hospital and Royal College of Surgeons in Ireland, Dublin, Ireland.
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Hossain SJ, Aoshima H, Koda H, Kiso Y. Potentiation of the ionotropic GABA receptor response by whiskey fragrance. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2002; 50:6828-6834. [PMID: 12405783 DOI: 10.1021/jf020448e] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
It is well-known that the target of most mood-defining compounds is an ionotropic gamma-aminobutyric acid receptor (GABA(A) receptor). The potentiation of the response of these inhibitory neurotransmitter receptors induces anxiolytic, sedative, and anesthetic activity in the human brain. To study the effects of whiskey fragrance on the GABA(A) receptor-mediated response, GABA(A) receptors were expressed in Xenopus oocyte by injecting rat whole brain mRNA or cRNA prepared from the cloned cDNA for the alpha(1) and beta(1) subunits of the bovine receptors. Most whiskey components such as phenol, ethoxy, and lactone derivatives potentiated the electrical responses of GABA(A) receptors, especially ethyl phenylpropanoate (EPP), which strongly potentiated the response. When this compound was applied to mice through respiration, the convulsions induced by pentetrazole were delayed, suggesting that EPP was absorbed by the brain, where it could potentiate the GABA(A) receptor responses. The extract of other alcoholic drinks such as wine, sake, brandy, and shochu also potentiated the responses to varying degrees. Although these fragrant components are present in alcoholic drinks at low concentrations (extremely small quantities compared with ethanol), they may also modulate the mood or consciousness of the human through the potentiation of the GABA(A) receptor response after absorption into the brain, because these hydrophobic fragrant compounds are easily absorbed into the brain through the blood-brain barrier and are several thousands times as potent as ethanol in the potentiation of the GABA(A) receptor-mediated response.
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Affiliation(s)
- Sheikh Julfikar Hossain
- Department of Physics, Biology and Informatics, Faculty of Science, Yamaguchi University, Yoshida, Yamaguchi 753-8512, Japan
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Tucker AO, Maciarello MJ, Alkire BH. Essential Oil ofAeollanthus suaveolensMart, ex Spreng. (Lamiaceae). JOURNAL OF ESSENTIAL OIL RESEARCH 2001. [DOI: 10.1080/10412905.2001.9699662] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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RAZA M, Choudhary MI, Atta-Ur-Rahman. Medicinal Plants with Anticonvulsant Activities. BIOACTIVE NATURAL PRODUCTS (PART C) 2000. [DOI: 10.1016/s1572-5995(00)80034-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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